What means <!-- in templates page

[AmzoooJibal]

Hello,
what is the role of <!-- in templates pages ? for example in the count collection of supplier i have this javascript code:

Code: Select all

<?php $this->block()->start( 'catalog/count/supplier' ) ?>
// <!--
var supplierCounts = <?= $this->get( 'supplierCountList', map() )->toJson( JSON_FORCE_OBJECT ) ?>;

$( ".catalog-filter-supplier .supplier-lists li.attr-item" ).each( function( index, item ) {
	$(item).append( function() {
		var itemId = $(this).data( "id" );

		if( supplierCounts[itemId] ) {
			var node = document.createElement( 'span' );
			node.appendChild( document.createTextNode( supplierCounts[itemId] ) );
			$(node).addClass( 'attr-count' );
			return node;
		}

		$(this).addClass( 'disabled' );
	});
});
// -->
<?php $this->block()->stop() ?>

where and when this code are executed ? and what is the role of <!-- in template page ?

[AmzoooJibal]

for the first question, the supplier count is executed by the javascript in the header of filter :

Code: Select all

<?php if( ( $url = $this->get( 'filterCountUrl' ) ) != null ) : ?>
	<script defer src="<?= $enc->attr( $url ) ?>"></script>
<?php endif ?>

this filter get all count html (in this case javascript).

I have just one more question is there any role of <!-- ? i can delete them ?

[aimeos]

Code: Select all

// <!--
...
// -->

This is a protection that the browser doesn't interpret the Javascript code as HTML. Just leave it there.